Intermittent Popping at High Speed

Discussion in 'Engine, Fuel and Exhaust' started by Texicun, Nov 4, 2008.

  1. Texicun

    Texicun Member

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    Any Ideas - It started after replacing the SE gold plugs that came on the bike w/ the standard HD plugs....

    05 FXSTI
    SE II mufflers
    Stage I Air intake

    Bought used in March w/ 10K
     
  2. TQuentin1

    TQuentin1 Well-Known Member Staff Member Moderator

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    As Hobbit said, make sure the plugs are gapped according to the book. Then, the easy thing is to reinstall the gold plugs if you still have them and see if you still have that same problem. If not, there ya go!!

    My guess is it is just coincidental that you changed the plugs and the popping started (assuming the gap is right!). Let us know what you find.

    TQ
     
  3. Texicun

    Texicun Member

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    Plugs were gapped to .038
     
  4. glider

    glider Veteran Member

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    The gap is .038-.042, try regapping to .040
     
  5. Texicun

    Texicun Member

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    Will do this weekend when it's cold
     
  6. TQuentin1

    TQuentin1 Well-Known Member Staff Member Moderator

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    As Glider said, regap to .40". But just for grins, grab each of the plug wires and push hard towards the plugs. Did you feel a "snap"?

    TQ
     
  7. Texicun

    Texicun Member

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    Yep, also had the boy grab hold of the wire while it was running to make sure it was firing - he wouldn't grab the other one for some reason....